Re: Beaconator band module (plug in LPF)
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Hi Chuck,
I received a picture of the buildathon Beaconator, thank you.
I'm specifically interested in the band module, if I understand correctly, the standard way to build the Beaconator is for a single band, using the onboard positions for LPF. An optional way to do it is to use the 7x2 header and use plug in LPF modules to allow band changes. (Of course a different crystal and maybe other oscillator components will have to be changed too).
I'd just like to know what the band modules are - I'm guessing they'd be an off the shelf item - say Tuna Topper or Lil Squall board. I guess Rex will be able to answer.
I've noted that LPF component values are helpfully added on the PCBS silkscreen.
73, Colin
On Sun, 16 May 2021, 15:05 Chuck Carpenter, < w5usj@...> wrote:
Working with a different eMail client and no clue what I¡¯m doing with it yet.? (I thought I¡¯d sent it direct?)
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I didn¡¯t know about the round board.? The QRPme web page has a layout of the board with all the IDs and such. That and the schematic should work for assembly (maybe).
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Also there is a table of the component values for the band module/filters.? I think it¡¯s a chart from the early Tuna Tin ][ kits.? The filters used most recently are the values from the RM][ P&E mods for a range of Cauer style filters.?
And some filters that used RF chokes and the tuned second harmonic.? That format appears to be what I see with the Beaconator filter table too.? I¡¯ll have to review the RM][ stuff to refresh my mind¡8^)
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(Thanks for reply on a different topic Chuck)
I have recently acquired a Beaconator kit, it's the keyer that drew me to the kit, that and the fact that I'm running out of novel tuna can based kits to build!
I have the canned Beaconator kit with the universal can / enclosure PCB.
I've found the schematic etc on the QRPme site but what I didn't find was build instructions. I'm pretty sure that I can just build from the schematic, so it's not so much of an issue. What I was mostly interested in is the band module. Which band module is
it? Would it be the Lil Squall type module? I've worked out that it's definitely not the Super Tuna style modules.
It would be cool to implement a multi-band Beaconator.
73,
Colin
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Chuck, W5USJ
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